22 



BULLETIN 976, U. S. DEPARTMENT OF AGRICULTURE. 



The annual yields of each variety for each date of seeding are 

 given first, followed in each case by the 6-year average. Dwarf 

 milo made its highest yield, 70.3 bushels, from the normal seeding 

 in 1915, and the lowest yield, 2.9 bushels, from the early seeding in 

 1918. The normal seeding in this variety yielded highest in five 

 years, and was exceeded by the early seeding in one year. The late 

 seeding made better yields than the early seeding in four of the six 

 years. In average yield during this 6-year period the normal seedr 

 ing ranks first, with 30.2 bushels, the late seeding takes second place, 

 with an average of 26.6 bushels, and the early seeding is third,with 

 an average of 25.2 bushels. This tends to show that the normal 

 date, from about May 20 to 25, is the best time to sow Dwarf milo 

 in that locality, and that it is safer to delay seeding a little than to 

 sow much earlier than the dates mentioned. 



Table IX. — Annual and average yields of four varieties of grain sorghum, grown in the 

 date-of-seeding experiments at the Amarillo Cereal Field Station during the 6-year period 

 from 1914 to 1919, inclusive. 



[In the statement of yields per acre the bushel is rated at 60 pounds for kafir and at 58 pounds for other 



sorghums.] 



Variety and time of seeding. 



Dwarf milo: 



Early 



Normal 



Late 



Feterita: 



Early 



Normal 



Late 



Dawn kafir: 



Early 



Normal 



Late 



Manchu kaoliang: 



Early... 



Normal 



Late 



Annual yields per acre. 



1914 1915 1916 1917 1918 1919 



Bushels. 

 29.0 

 30.3 



27.1 



14.0 

 18.3 

 29.0 



25.0 

 14.7 

 16.7 



20.3 

 20.0 

 26.4 



Bushels. 

 58.8 

 70.3 

 61.7 



36.2 

 52.1 

 49.5 



52.5 

 53.3 

 46.3 



38.9 

 46.6 

 49.5 



Bushels. 

 3.1 



9.7 



S. 1 



7.4 

 14.5 

 13.4 





 3.7 



7.0 



4.5 

 6.6 

 3.4 



Bushels. 

 37.4 

 17.2 

 36.2 



20.5 

 21.4 



28.4 



19.8 

 5.0 

 17.7 



15.3 

 2.4 

 8.6 



Bushels. 

 2.9 

 4.8 

 3.7 



2.4 

 4.1 



2.0 

 1.2 

 1.5 



2.6 

 3.1 



5.3 



Bushels. 

 20.2 

 48.6 

 22.6 



10.5 

 20.7 

 31.7 



33.8 

 32.0 

 35.3 



15.0 

 6.9 

 27.6 



Average. 



Bushels. 

 25.2 

 30.2 

 26.6 



15.2 

 21.9 

 26.8 



22.2 



18.3 

 20.8 



16.1 

 14.3 

 20.1 



The lowest yield of feterita was produced from the early seeding 

 in all six years. The normal seeding made the best yields in two 

 years and the late seeding in four years. On the average the late 

 seeding takes first place with 26.8 bushels, the normal is second 

 with 21.9 bushels, and the early comes last with only 15.2 bushels. 

 The yield from the late seeding on the average is more than 5 bush- 

 els larger than that of the normal and over 1 1 bushels more than from 

 the early seeding. This shows clearly that early seeding should not 

 be practiced with feterita in the Amarillo section. 



Dawn kafir made the highest yields from the early seeding in three 

 years and a failure in one year. The normal seeding ranked first 

 in one year and the late seeding ranked first in two years. In the 

 6-year average the early seeding ranks first with 22.2 bushels, the 



